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>urldecode</H1
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><P
> (PHP 3, PHP 4, PHP 5)</P
>urldecode -- 解码已编码的 URL 字符串</DIV
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><H2
>说明</H2
>string <B
CLASS="methodname"
>urldecode</B
> ( string str )<BR
></BR
><P
> 解码给出的已编码字符串中的任何
<TT
CLASS="literal"
>%<TT
CLASS="replaceable"
><I
>##</I
></TT
></TT
>。返回解码后的字符串。
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>例 1. <B
CLASS="function"
>urldecode()</B
> 例子</B
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><code><font color="#000000">
<font color="#0000BB"><?php<br />$a </font><font color="#007700">= </font><font color="#0000BB">explode</font><font color="#007700">(</font><font color="#DD0000">'&'</font><font color="#007700">, </font><font color="#0000BB">$QUERY_STRING</font><font color="#007700">);<br /></font><font color="#0000BB">$i </font><font color="#007700">= </font><font color="#0000BB">0</font><font color="#007700">;<br />while (</font><font color="#0000BB">$i </font><font color="#007700">< </font><font color="#0000BB">count</font><font color="#007700">(</font><font color="#0000BB">$a</font><font color="#007700">)) {<br /> </font><font color="#0000BB">$b </font><font color="#007700">= </font><font color="#0000BB">split</font><font color="#007700">(</font><font color="#DD0000">'='</font><font color="#007700">, </font><font color="#0000BB">$a</font><font color="#007700">[</font><font color="#0000BB">$i</font><font color="#007700">]);<br /> echo </font><font color="#DD0000">'Value for parameter '</font><font color="#007700">, </font><font color="#0000BB">htmlspecialchars</font><font color="#007700">(</font><font color="#0000BB">urldecode</font><font color="#007700">(</font><font color="#0000BB">$b</font><font color="#007700">[</font><font color="#0000BB">0</font><font color="#007700">])),<br /> </font><font color="#DD0000">' is '</font><font color="#007700">, </font><font color="#0000BB">htmlspecialchars</font><font color="#007700">(</font><font color="#0000BB">urldecode</font><font color="#007700">(</font><font color="#0000BB">$b</font><font color="#007700">[</font><font color="#0000BB">1</font><font color="#007700">])), </font><font color="#DD0000">"<br />\n"</font><font color="#007700">;<br /> </font><font color="#0000BB">$i</font><font color="#007700">++;<br />}<br /></font><font color="#0000BB">?></font>
</font>
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</P
><P
> 参见 <A
HREF="function.urlencode.html"
><B
CLASS="function"
>urlencode()</B
></A
>，<A
HREF="function.rawurlencode.html"
><B
CLASS="function"
>rawurlencode()</B
></A
>
和 <A
HREF="function.rawurldecode.html"
><B
CLASS="function"
>rawurldecode()</B
></A
>。
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